# CVE-2021-22900: Ivanti Pulse Connect Secure Unrestricted File Upload Vulnerability

> CVE-2021-22900: Ivanti Pulse Connect Secure Unrestricted File Upload Vulnerability. CVSS 7.2 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2021-22900
Last updated: 2025-10-21T23:25:44Z

- Published: 2021-05-27 11:15 UTC · Updated: 2025-10-21 23:25 UTC · Assigner: hackerone
- CVSS: 7.2 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- EPSS: 14.1%, 97th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2021-11-03, federal due date 2022-05-03, ransomware use: Unknown
- CWE: CWE-94

## Description

A vulnerability allowed multiple unrestricted uploads in Pulse Connect Secure before 9.1R11.4 that could lead to an authenticated administrator to perform a file write via a maliciously crafted archive upload in the administrator web interface.

## CISA required action

Apply updates per vendor instructions.

## Affected vendors and products

- n/a: Pulse Secure Secure

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2021-22900)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2021-22900)
- [https://kb.pulsesecure.net/articles/Pulse\_Security\_Advisories/SA44784/?kA23Z000000boUWSAY](https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44784/?kA23Z000000boUWSAY)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2021-22900 · Markdown: https://rewindex.com/cve/CVE-2021-22900.md · JSON: https://rewindex.com/api/v1/cves/CVE-2021-22900 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:15:26.560Z